# -*- coding:utf-8 -*-
import sys
reload(sys) 
sys.setdefaultencoding('utf-8') 

c_file = open('c.txt','r')
c_txt = c_file.readline()
c_file.close()
u_txt = c_txt.decode('utf-8')
#s = u_txt.encode('unicode-escape')  # 这两个方法都很神奇啊
s = u_txt.__repr__()
u_file = open('u.txt','w')
u_file.write(s)
u_file.close()

